mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-16 00:03:24 +00:00
c05ed00afb
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* drivers/usb/gadget/dwc2_udc_otg.c
|
|
* Designware DWC2 on-chip full/high speed USB OTG 2.0 device controllers
|
|
*
|
|
* Copyright (C) 2008 for Samsung Electronics
|
|
*
|
|
* BSP Support for Samsung's UDC driver
|
|
* available at:
|
|
* git://git.kernel.org/pub/scm/linux/kernel/git/kki_ap/linux-2.6-samsung.git
|
|
*
|
|
* State machine bugfixes:
|
|
* Marek Szyprowski <m.szyprowski@samsung.com>
|
|
*
|
|
* Ported to u-boot:
|
|
* Marek Szyprowski <m.szyprowski@samsung.com>
|
|
* Lukasz Majewski <l.majewski@samsumg.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/list.h>
|
|
#include <malloc.h>
|
|
|
|
#include <linux/usb/ch9.h>
|
|
#include <linux/usb/gadget.h>
|
|
|
|
#include <asm/byteorder.h>
|
|
#include <asm/unaligned.h>
|
|
#include <asm/io.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
|
|
#include "dwc2_udc_otg_regs.h"
|
|
#include "dwc2_udc_otg_priv.h"
|
|
|
|
#include <usb/dwc2_udc.h>
|
|
|
|
void otg_phy_init(struct dwc2_udc *dev)
|
|
{
|
|
unsigned int usb_phy_ctrl = dev->pdata->usb_phy_ctrl;
|
|
struct dwc2_usbotg_phy *phy =
|
|
(struct dwc2_usbotg_phy *)dev->pdata->regs_phy;
|
|
|
|
dev->pdata->phy_control(1);
|
|
|
|
/* USB PHY0 Enable */
|
|
printf("USB PHY0 Enable\n");
|
|
|
|
/* Enable PHY */
|
|
writel(readl(usb_phy_ctrl) | USB_PHY_CTRL_EN0, usb_phy_ctrl);
|
|
|
|
if (dev->pdata->usb_flags == PHY0_SLEEP) /* C210 Universal */
|
|
writel((readl(&phy->phypwr)
|
|
&~(PHY_0_SLEEP | OTG_DISABLE_0 | ANALOG_PWRDOWN)
|
|
&~FORCE_SUSPEND_0), &phy->phypwr);
|
|
else /* C110 GONI */
|
|
writel((readl(&phy->phypwr) &~(OTG_DISABLE_0 | ANALOG_PWRDOWN)
|
|
&~FORCE_SUSPEND_0), &phy->phypwr);
|
|
|
|
if (s5p_cpu_id == 0x4412)
|
|
writel((readl(&phy->phyclk) & ~(EXYNOS4X12_ID_PULLUP0 |
|
|
EXYNOS4X12_COMMON_ON_N0)) | EXYNOS4X12_CLK_SEL_24MHZ,
|
|
&phy->phyclk); /* PLL 24Mhz */
|
|
else
|
|
writel((readl(&phy->phyclk) & ~(ID_PULLUP0 | COMMON_ON_N0)) |
|
|
CLK_SEL_24MHZ, &phy->phyclk); /* PLL 24Mhz */
|
|
|
|
writel((readl(&phy->rstcon) &~(LINK_SW_RST | PHYLNK_SW_RST))
|
|
| PHY_SW_RST0, &phy->rstcon);
|
|
udelay(10);
|
|
writel(readl(&phy->rstcon)
|
|
&~(PHY_SW_RST0 | LINK_SW_RST | PHYLNK_SW_RST), &phy->rstcon);
|
|
udelay(10);
|
|
}
|
|
|
|
void otg_phy_off(struct dwc2_udc *dev)
|
|
{
|
|
unsigned int usb_phy_ctrl = dev->pdata->usb_phy_ctrl;
|
|
struct dwc2_usbotg_phy *phy =
|
|
(struct dwc2_usbotg_phy *)dev->pdata->regs_phy;
|
|
|
|
/* reset controller just in case */
|
|
writel(PHY_SW_RST0, &phy->rstcon);
|
|
udelay(20);
|
|
writel(readl(&phy->phypwr) &~PHY_SW_RST0, &phy->rstcon);
|
|
udelay(20);
|
|
|
|
writel(readl(&phy->phypwr) | OTG_DISABLE_0 | ANALOG_PWRDOWN
|
|
| FORCE_SUSPEND_0, &phy->phypwr);
|
|
|
|
writel(readl(usb_phy_ctrl) &~USB_PHY_CTRL_EN0, usb_phy_ctrl);
|
|
|
|
writel((readl(&phy->phyclk) & ~(ID_PULLUP0 | COMMON_ON_N0)),
|
|
&phy->phyclk);
|
|
|
|
udelay(10000);
|
|
|
|
dev->pdata->phy_control(0);
|
|
}
|